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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>JavaScript HashChange Example</title>
    <link rel="stylesheet" href="css/style.css">
    <script src="js/app.js" defer></script>
</head>

<body>
    <header>
        <nav>
            <a href="#home">Home</a>
            <a href="#about">About</a>
            <a href="#contact">Contact</a>
        </nav>
    </header>
    <main id="content">
        <h1>HashChange Event Demo!</h1>
        <p>Click the links above to change the content.</p>
    </main>
</body>

</html>